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DC generator works is induced in the armature coil alternating electromotive force, by the commutator with the brush commutation effect, so that when the end of the brush becomes drawn from the principle of the DC electromotive force.

    No DC voltage on the brush, drag the prime mover so that the armature is rotated counterclockwise constant speed, on both sides of the coil magnetic field lines are cut under different polarity magnetic poles, and in which the induced electromotive force, emf press right-hand rule determine. This electromagnetic expressed in the diagram. Due to continuously rotate the armature ,, Therefore, we must make current-carrying conductor in a magnetic field of the coil sides ab and cd alternately cutting N and S poles by the magnetic field lines under, although each coil side and the entire coil induced electromotive force direction is alternating. Induced electromotive force in the coil is an alternating force, in the brush A, B-side DC electromotive force, but force (or rather some direction is a constant pulsating force). Since, during the rotation of the armature, the armature regardless to what position, since the commutator with the brush commutation action by the brush commutator segments A electromotive force is always drawn as a coil edge cut an N pole magnetic flux lines the electromotive force, therefore, the brush a always has a positive polarity. Similarly, the brush B always negative, so the brush end can lead to the same direction, but changes in the size of the pulsating force. As the number of coils per pole under the increase, can reduce the extent of pulsating, DC electromotive force can be obtained. This is the DC generator works. But also that the child is essentially a DC generator with alternator commutator.Mitsubishi (S6-PTAA) Mitsubishi (S12H-PTA) Mitsubishi (S12R-PTA) Mitsubishi (S12R-PTAA2) Mitsubishi (S16R-PTA) Mitsubishi (S16R-PTA2) Mitsubishi (S16R-PTAA2)Mitsubishi (S16R2-PTAW) Googol (403C-11G) Googol (403C-15G) Googol (404C-22G) Googol (1103A-33G) Googol (1103A-33TG1) Googol (1103A-33TG2) Googol (1104A-44TG2)Googol (1006TG1A) Googol (1104C-44TG2) Googol (1006TAG) Googol (1306C-E87TG1) Googol (1306-E87TG2) Googol (1306-E87TAG1) Googol (1306-E87TAG2) Googol (1306C-E87TAG3) Googol (1306C-E87TAG4) Googol (1306C-E87TAG6) Googol (2036C-E14TAG2) Googol (2036C-E15TAG3) Googol (2506C-E15TAG1) Googol (2506C-E15TAG2) Googol (2806C-E18TAG1) Googol (2806C-E18TAG2) Googol (4006-23TAG2A) Googol (4006-23TAG3A) Googol (4008TAG2A) Googol (4012TEG2) Googol (4012TAG) Googol (4012TEG) Googol (4012TAG1A) Googol (4016TAG) Googol (4016TAG1A) Googol (4016TAG2)